Humans have been inspired by the designs of nature since the beginning of our existence so it only makes sense that to develop an extremely sensitive temperature sensor, engineers took a close look at temperature-sensitive plants. Then they developed a hybrid material that contains, in addition to synthetic components, the plant cells themselves.

The result is an electronic module that changes its conductivity as a function of temperature. "No other sensor can respond to such small temperature fluctuations with such large changes in conductivity. Our sensor reacts with a responsivity at least 100 times higher compared to the best existing sensors," says Raffaele Di Giacomo, a post-doctoral researcher at ETH Zurich.

Body odor is a reality of daily life. The smell is caused by bacteria on the skin breaking down naturally secreted molecules contained within sweat. Researchers from Unilever and the University of York have studied the underarm microbiome and identified a unique set of enzymes in the bacterium Staphylococcus hominis that is effective at breaking down sweat molecules into compounds known as thioalcohols, an important component of the characteristic body odor smell.

People who have lost some of their peripheral vision, such as those with retinitis pigmentosa, glaucoma, or brain injury that causes half visual field loss, often face mobility challenges and increased likelihood of falls and collisions. As therapeutic vision restoration treatments are still in their infancy, rehabilitation approaches using assistive technologies are often times viable alternatives for addressing mobility challenges related to vision loss.

In a new paper, a team of Yale researchers assesses the "criticality" of all 62 metals on the Periodic Table of Elements, providing key insights into which materials might become more difficult to find in the coming decades, which ones will exact the highest environmental costs -- and which ones simply cannot be replaced as components of vital technologies.

During the past decade, sporadic shortages of metals needed to create a wide range of high-tech products have inspired attempts to quantify the criticality of these materials, defined by the relative importance of the elements' uses and their global availability.

Just as crocus and daffodil blossoms signal the start of a warmer season on land, a similar "greening" event--a massive bloom of microscopic plants, or phytoplankton--unfolds each spring in the North Atlantic Ocean from Bermuda to the Arctic.

Epidemiologists believe they have identified a unique pattern of immune molecules in the cerebrospinal fluid of people with myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) that provides insights into the basis for cognitive dysfunction--frequently described by patients as "brain fog"--as well as new hope for improvements in diagnosis and treatment.